United Industrial Corporation manufactured and supported aerospace and defense systems through its wholly owned subsidiary, AAI Corporation, and AAI Corporation’s direct and indirect wholly owned subsidiaries, AAI Services Corporation, Aerosonde Pty Ltd, Aerosonde North America Incorporated, ESL Defence Limited, McTurbine Inc., and Symtx, Inc. Its products and services included unmanned aircraft systems, training and simulation systems, automated aerospace test and maintenance equipment, armament systems, aviation ground support equipment, logistical and engineering services, and maintenance, repair and overhaul activities. In 2007, Textron acquired United Industrial Corp.